Smoke-consumer.



W. M. GRANT.

SMOKE CONSUMER.

, APPLIGATION FILED 00115, 1907.

Patented Oct. 13,1908.

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WILLIAM M. GRANT, OF RICHMOND, VIRGINIA, ASSIGNOR OF ONE-HALF TO MICHAEL J. ONEIL, OF MANCHESTER, VIRGINIA.

SMOKE-CONSUMER.

Specification of Letters Patent.

Patented Oct. 13, 1908.

Application filed October 1 5, 1907. Serial No. 397,545.

sumption of smoke, as well as the economizing of fuel and the supporting of flues.

Another object of the invention is the improvement of the construction of a boiler,

preferably, a locomotive boiler, whereby steam can be quickly generated, owing to the fact that a very large surface is exposed to the flames, and, also, the fines are rigidly supported, thereby preventing the same from becoming loose upon or injured by the jar ring or vibration or any movement of the boiler.

With these and other objects in view, the invention consists of certain novel constructions, combinations, and arrangements of parts, as will be hereinafter fully described and claimed.

In the drawings: Figure 1 is a longitudinal, sectional view of a smoke consumer constructed in accordance with the present invention. Fig. 2 is a transverse, sectional view taken through the combustion chamber of the structure depicted in Fig. 1. Fig. 3 is a fragmentary view, in side elevation, of a smoke consumer or boiler constructed in accordance with the present invention, showing particularly the damper for closing the openings in the man-hole door. Fig. 1 is a fragmentary view, in side elevation, of my invention, showing particularly the damper device for one of the openings of the combustion chamber.

Referring to the drawings by numerals, 1 designates the shell or casing of, preferably, a locomotive boiler and 2 is the fire-box thereof.

A comparatively large combustion chamber 3 is placed, preferably, at the center of a boiler, and the fines 4. open at one end into the fire-box and at their opposite end into the combustion chamber at one side. The fiues 5 open at their front ends into the forward end of the boiler, whereas their rear ends open in the combustion chamber at the side opens l opposite to the side carrying the front end of the rear flues 4. The combustion chamber 3 is formed by a casing 6, preferably, substantially semi-cylindrical shape, Fig. 2, and the casing 6 is supported between the inner walls of the boiler casing 1 by means of bolts or rivets 7. The rivets are, preferably,

ference of the boiler, and contiguous to the ends of the casing 6, thereby rigidly securing the casing within the boiler near its center, forming a fixed support for the inner ends of the fines 4 and 5, and as the length of the fiues are comparatively short relative to the length of the boiler, said fines are retained firm within the boiler, thereby preventing said flues from rattling or working loose, owing to the vibration or jar of the boiler or engine. This is important, as long fines work loose in a locomotive boiler, and greatly increase the expense of keeping the boiler in working condition.

In one side of the boiler 1, Fig.2, I secure a comparatively large transverse pipe 8, and within pipe 8, is suitably mounted an auxiliary pipe or tubing 9. The pipes or casings 8 and 9 have their inner ends opening or in communication with the combustion chamber 3, while the primary pipe or casing 8 into the outer atmosphere, permitting a continuous draft of fresh air to pass into the combustion chamber 3, whereas I, preferably, connect the outer end of the pipe or casing 9 with an air-compressor or reservoir 10, whereby a forced draft may be caused to pass through the pipe 9 and discharge into the combustion chamber, if it is desired to facilitate or assist the combustion of the gases in the comparatively large chamber 3.

I, preferably, provide a damper for closing the outer end of the pipe or casing 8, and said damper comprises two plates or semidisks 1]., pivotally connected together, upon any suitable support, at 12, and each plate is ivotally connected, at its upper end 13 to a ink 14. The links 14 are pivotally connected, at 15, to the lower arm or extension 16 of a bell-crank lever, which lever is pivotally mounted, at 17, upon any suitable support. The upper arm 18 of the lever is pivotally connected, at 19, to a rod, or actuating means 20, which rod 20 may extend into the cab or locomotive in a convenient position to be adjusted by the operator or engineer for opening or closing the sections 11. It will be ob- 1 placed in parallel lines around the circumvious that when. the lower portion 16 of the bell-crank lever is raised, the links 14 will draw the sections or plates 1]. together, and as each plate is rovided with a semi-circular notch 21, said p ates will close together, and the notches will fit around the auxiliary tubing or casing 9, thereby effectually closing the outer end of the primary pipe or casing 8.

Upon the opposite side of the boiler to that carrying the pipes or casings 8 and 9, I form a man-hole 22, whereby a person can enter the combustion chamber and clean the same or examine or repair the casing 6 or the inner end of the flues 4 and 5. A man-hole door 23 is, preferably, hinged at 24, upon the boiler 1, and is adapted to close the man-hole 22. Upon the outer face of the door is provided a revoluble damper 25, which damper is provided with openings 26 adapted to register with similar openings 27, formed in the door 23. The damper is provided with an actuating-rod 28, which is pivotally connected thereto, at 29. The rod 28 may extend into the cab of the engine, and be actuated by the operator or engineer for closing or controlling the draft or amount of air passing into the combustion chamber 3. It will be noted that by partly closing the plates or sections 11, the amount of air passing into the combustion chamber through pipe 8 may be also controlled.

Owing to the fact that peculiarly-constructed openings are formed on the casing 6 and boiler 1, directly opposite each other, and as these openings permit the entrance of air from the outer atmosphere and commingle with the gases or smoke in the combustion chamber, said gases and smoke will be burned and thereby materially decrease or entirely obviate smoke escaping, besides economizing fuel, as the burning of the gases will prevent waste.

Upon referring to Fig. 2, it will be noted 1 that the man-hole 22 is formed by a laterally extending flanged structure 22 formed upon the casing 6, and an inwardly, laterally-extending flanged portion of the boiler overlapping the flanged portion 22 of the casing.

What I claim is:

1. In an apparatus of the class described, the combination of a boiler provided with a its center, said combustion chamber provided with openings opening into the outer atmosphere in the same horizontal plane and said openings, means for directing a forced draft through the other opening, and means for partly closing said last-mentioned opening.

2. In an apparatus of the class described, the combination of a boiler provided with a centrally-arranged combustion chamber and with lines extending longitudinally of said boiler and positioned at opposite sides of said combustion chamber, said combustion chamber provided with diametrically-arranged side-openings positioned near the center of the sides of the boiler, a pipe positioned in the center of one of the side-openings and having its inner end discharging into the combustion chamber, and valve means for closing around the pipe and preventing air from entering the combustion chamber only through said pipe, and the other side opening I provided with valve means for regulating the flow of air into the combustion chamber in I the same horizontal plane with the inner discharge end of the pipe. In testimony whereof I hereunto afiix my I signature in presence of two witnesses.

j VVILLIANI M. GRANT.

Witnesses:

R. S. ROBERTSON, E. T. DUVAL.

secondary combustion chamber, formed near upon opposite sides, means for closing one of 

